Stop in for a cup of coffee

WV64Signet said

Yeah... this is the one I watched

198 - "Torqueflite Hydraulics" (May 1964)
Volume 64 #05

Click to expand...

Get the booklet too.
Without a lift, pressure tests are dicey IMO.
Still think you should try to figure out what is engaging and what is not.
Then figure out Is it lack of pressure overall that could cause that? or just one circuit or part?